Method and means for atomizing more or less viscid materials



A. SONSTHAGEN AND E. H. HARBERD.

METHOD AND MEANS FOR AToMlzlNG MORE 0R Less vlscm MATERIALS.

APPLICATlON FlLED MAH. 25, 1920.

Patented Aug. 29, 1922` 2 SHEETS-SHEET l.

In venan;

mffiagemg A. SONSTHAGEN AND'E. H. HARBERD.

METHOD AND MEANS FOR ATOMIZING MORE 0R LESS VISCID MATERIALS.

APPLlcAHoN FILED MAH, 25, 1920 1 ,427,5551 Patented Aug. 29, 1922.

2 SHEETS-SHEET 2.

jig/5 ny'enon UNITED STATES PATENT OFFICE.

ASBJORN SONSTHAGEN, OF ESSEX, AND EDMUND HENRY HARBERD, OF LONDON,

ENGLAND. v

METHOD AND MEANS FOR ATOMIZING MORE OR LESS VISCID MATERIALS..

Specification of Letters Patent.

Patented Aug. 29, 1922.

Application led March 25, 1920. Serial No. 368,738.

T o all wie afm-t may con-cern Be it known that we, AsBJoRN SONS- -the following is a specification.

This invention relates to a method and means for atomizing more or less viscid materials, and it has for its object the treatment of viscid materials with a view to rapidly bringing them to a finely divided condition. n

According to this invention the materlal is first brought to a condition of va thin .layer or film, and whilst in this state the said material is transferred to a rapidly moving body the receiving surface of which comprises a number of smallpoints from which points the material in flung under the influence of centrifugal force so that it is brought to a finely divided state.

The rapidly moving body, which in one form may comprise a rotary brush, is caused to act upon a film of the material without actual contact with the drum, roller or other body carrying said film. By this means not only is it possible to produce a more constant effect so far as the fineness of the spray produced is concerned but wear of the brush through cont-act with the drum or roller is avoided.

In practice the material, a syrup for eX- ample, is first spreaduniformly in the state of a thin layer or film by any sluitble known means upon the surface of a moving body such as a rotating cylinder, band or the like. Arrange closely adjacent to the said cylinder, band or the like is a rapidly moving body which may conveniently be in the form of a drum or roller and which body has formed upon it a number of sharply pointed teeth or projections, the positioning ofthe said roller being such that whilst the aforesaid points will pick up the material they do not contact with the drum from which the material is being removed. The body just referred centrifugal force being collected in a finely divided condition. In the arrangement just referred to it is assumed that the direction of movement of the adjacent surfaces of the two bodies is the same. It may be found, however, with somematerials that there is a tendency for the material or a certain amount thereof to be carried around by the first roller in which case al scraper is provided whereby the material is removed from the first roller and taken from said scraper by the toothed roller which may then be running in the opposite direction. Such arrangement may also be necessary when for instance the material is of a coarse nature in orderrto prevent the toothed roller from acting as a crushing roller against the film roller. Instead ofa toothed roller a brush may be employed, and if desired provision may be made whereby prior to contacting with the material the bristles, by .which term it is intended to include wire or other material, are held back so that Athey have a sharp flicking movement. Obviously instead of a roller or brush, an endless band or the like may be employed provided with the necessary sharp points, or bristles, as the case may be. In any case the surface at the moment in contact with the film is of the smallest possible dimensions consistent with its removal of the material.

In order that the invention may be the better understood drawings are appended illustrating one form of the invention as applied to a simultaneous atomization of two visci'd liquids and in which z- Fig. l is an elevation of a machine embodying the present invention.

Fig. 2 is an end view.

Fig, 3 is a diagrammatic View showing more clearly the arrangement of the rollers and the atomizing brush.

Fig. l is a sectional view lillustrating a modification. I

Fig. 5 is an end view, and

Fig. 6 a side view showing an alternative form of body for removing the film from the drum.

Fig. 7 is a side view, and

Fig. 8 a front view ofV a built up form of body for removing the film from the drum.

Fig. 9 is a front View showing a further modification of a built up form of body for removing the film fromthe drum.

Fig. 10 is a front view of a modified form of the body shown in Fig. 9.

cate side frames adapted to be secured to the frame of the refiner of which only one" roller is shown in Fig. Adjustably secured within the frames a, b are blocks 001,51 forming bearings for the trunnions of rollers c, d which rollers are partly contained within the lower ends of hoppers ci, Z1 containing for example sugar and honey. rlhe hoppers are supported by lugs attached to the bearings a?, b1 as shown in dotted lines in Fig. 2 the end walls of said hoppers lying outside the ends of the rollers to prevent the escape of thematerial at these points, as shown more clearly in Fig. 3. The hoppers are so shaped and mounted that the fronts thereof, at the points y, z form scrapers permitting a thin film of material to be deposited upon the rollers c, (l. e indicates a circular brush mounted in bearings formed in the frames a, L. The rollers t', Z are driven in any suitable manner from a counter-shaft, not shown, whilst the brush e is driven directly from an electric motor by a belt running over pulley el secured to one end of the spindle of the brush. The rollers c, d are so adjusted with respect to the brush that the bristles thereof remove the film of material first from roller d and project it on to roller 0 when it forms part of the coating upon said roller and from which it is picked up by the brush and projected on to the roller a; the particles during their passage through the air being broken up or scattered so that the material reaches the said roller .fr in a finely divided condition.

In order to secure the more efficient action of the bristles they may be restrained just prior to their contacting with the film by means of a bar f or other obstruction so placed as to hold the bristles back whereby they have a sharp fiicking movement as they engage the material.

bviously the invention is not limited to the application shown and described as it may be employed for various purposes in which it is essential that a material be brought to a finely divided condition. For example an arrangement such as herein described may be employed for coating a surface,or for decorating articles, sweetmeats for example. In this case instead of employing a continuous brush or its equivalent the said brush may be built up of sections suitably spaced apart whereby lines of various colours or materials may be formed upon the sweetmeat or other articles it is desired to decorate.

Instead of a brush the body carrying the points or surfaces for removing the material from the roller or drum may comprise a number of surfaces arranged on spiral lines. Such an arrangement is shown in Figs. 5 and@ where w indicates a number of projections of triangular form which projections are arranged in continuous spiral lines as shown in Fig. 6 or if desired the lines may be interrupted to produce a series of sharply pointed teeth. Again the body mayr be built up of a number of thin toothed discs w1 arranged side by side upon a spindle w2 as shown in Figs. 7 and'8.

Instead of teeth, however, the discs may be simply provided with a knife edge as shown at w1 Fig. 9. Instead of being formed of separate discs a solid roller may be provided with a number of circumferential grooves as shown at Fig. 10 the collars thus formed being provided with a knife edge.

Claims:

l. Means for atomizing more or less viscid material comprising a plurality of moving surfaces, in the form of rollers, hoppers supplying the material to said rollers, means for forming films of the material on the surfaces of the rollers, a brush moving at a high speed having bristles contacting with the films but not with the rollers to remove said films, and from which bristles the material is projected by centrifugal force and means engaging said bristles prior to their contact with the material whereby a sharp flicking action is imparted to said bristles as they contact with the material.

2. Means for atomizing more or less viscid material comprising a plurality of moving surfaces, in the form of rollers, hoppers supplying` the material to said rollers, means for forming films of the material on the surfaces of the rollers, means for adjusting the hoppers towards or away from the rollers, a brush moving at a high speed having bristles vcontacting with the films but not with the rollers to remove said films, and from which bristles the material is projected by centrifugal force and means engaging said bristles prior to their contact with the material, whereby a sharp flicking action is imparted to said bristles as they Contact with the material.

3. Means for atomizing more or less viscid material comprising a. plurality of moving surfaces, in the form of rollers, hoppers supplying the material to said rollers, means for forming films of the material on `the surfaces of the rollers, a brush movingiat a high speed having bristles contacting with the films but not with the rollers to remove said films from which bristles the material is projected by centrifugal force, means engaging said bristles prior to their contact with the material whereby a sharp flicking action is imparted to said bristles as they contact with the material and means for adjusting the rollers towards or away from the brush.

.4. Means for atomizing more or, less viscid material comprising a roller, means for forming a film upon said roller, a second roller means for forming a film upon said second roller, a third roller moving at a high speedand removing the film from the first roller and projecting it by centrifugal force on to the second roller, and means for removing the combined film from the second roller.

5. Means for atomizing more or less viscid material comprising a roller means for forming a4 film upon said roller, a second roller, means for forming a film upon said second roller, a third roller moving at a high speed, removing the film from the first roller said third roller also contacting with said second roller and removing the combined lm therefrom.

6. Means for atomizing more or less viscid material comprising Va roller means for forming a film upon said roller, a second roller, means for forming a film upon said second roller, a third roller moving at a high speed and removing the film from the first roller, said third roller also contacting with said second roller and removing the combined filmtherefrom, means for regulating the thickness of the films upon the rollers and for adjusting the third roller with respect to the film carrying rollers.

7. Means for atomizing more or less viscid material comprising a roller, means for forming a film upon said roller, a second roller, means for forming a film upon said second roller, a third roller moving at a high speed, points or teeth upon said third roller for removing the material from the first roller and projecting it onto the material upon the third roller and removingthe combined filmtherefrom.

8. Means for atomizing more or less viscid material comprising a roller, means for forming a film upon said roller, a second roller, means for forming a film upon said second roller, a third roller moving ,at a high speed, bristles upon said third roller adapted'to contact with the film upon the first roller, means for restraining said brisvtles prior to their contact with the film upon the first roller whereby a sharp fiicking action is imparted tosaid bristles whereby the material is removed from the first roller and projected by centrifugal force as to the third roller, and means for removing the combined lm from said second roller.

9. Means for atomizing more or less viscid material comprising a roller, means for forming a film upon said roller, a second roller, means for forming a film `upon said second roller, a third roller moving at a high speed, points upon said third roller for removing the material from the first roller and projecting it on to the second roller,

said points also contacting with the material upon the second roller and removing the combined film therefrom, and' means for regulating the thickness of the films upon the rollers and for adjusting the film rollers with respect to each other and the lm removin roller.

10. eans for atomizing more or less viscid material comprising a roller, means for forming la film upon said roller, a second roller, means for forming a film upon said second roller, a third roller moving at high speed, bristles upon said third roller adapted to contact with the film upon the first roller and project it therefrom on to the second roller, said bristles also contacting With the combined film upon the second roller and removing it therefrom.y

1l. Means for atomizing more or less viscid material, comprising a roller, means for forming a film upon said roller, .a second roller, means for forming a film upon said second roller, a third roller moving at a highl speed, bristles upon said third roller adapted tocontact with the film upon the first roller, means for restraining the bristles prior to their contact with the film upon the first roller whereby a sharp flicking action is imparted thereto and the material is projected on to the second roller, said bristles also contacting with and removing the combined film upon the second roller, said bristles also contacting with the combined film upon the second roller and removing it therefrom.

l2. Means for atomizingmore or less viscid material, comprising a roller, means for forming a film upon said roller, a second roller, means for forming a film upon said second roller, a third roller moving at a high speed, bristles upon said third roller adapted to contact with the film upon the first roller, means for restraining the bristles prior to their contact with the film upon the first roller whereby a sharp fiicking action is imparted thereto and the material is projected on to the second roller, saidv bristles also contacting with and removing the combined film upon the secondjusting the third roller with respect to the film carrying rollers.

In witness whereof We have hereunto -set our hands in the presence of two witnesses.

ASBJORN SONSTHAGEN. EDMUN D HENRY HARVBERD. 

